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How can you design a secure architecture for mobile applications?

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Mobile applications have become increasingly popular and powerful, but they also present significant security risks. To protect your data, users, and business, it's essential to design a secure architecture for mobile applications. In this article, you'll learn key principles and best practices for mobile security architecture, including threat modeling and risk assessment, secure coding and testing, data encryption and storage, authentication and authorization, network and API security, and monitoring and incident response.

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Sharat Lal

Digital Risk Manager - Al Futtaim, CISSP | CISM
Jaivrat Singh Rajoria

CyberSec Enthusiast! Helping organisations to achieve highly controlled & secured connectivity for widespread assets…

1 Threat modeling and risk assessment

Before you start designing your mobile security architecture, you need to understand the threats and risks that your application faces. Threat modeling is a systematic process of identifying and prioritizing the potential attackers, assets, vulnerabilities, and scenarios that could compromise your application. Risk assessment is a quantitative or qualitative evaluation of the likelihood and impact of each threat. Together, these methods help you define your security objectives, requirements, and assumptions.

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Jaivrat Singh Rajoria

CyberSec Enthusiast! Helping organisations to achieve highly controlled & secured connectivity for widespread assets and ensuring end-users get seamless connectivity to carry out legitimate activities.
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In my experience there are primarily 3 ways to address this topic: 1. Thinking from an attacker perspective and applying the attacker logic into the application scanning tool in order to identify actual vulnerabilities. 2. Tight collaboration between your security team and application development team via a proper Business Analyst who understands the application along with the technical security aspects. 3. Continuous scanning and re validation of the closed vulnerabilities.

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2 Secure coding and testing

One of the most important aspects of mobile security architecture is secure coding and testing. Secure coding is the practice of writing code that follows security standards and guidelines, avoids common vulnerabilities, and implements security controls. Secure testing is the practice of verifying and validating the security of your code, using methods such as static and dynamic analysis, code reviews, penetration testing, and vulnerability scanning. Secure coding and testing help you prevent, detect, and fix security flaws in your application.

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Jaivrat Singh Rajoria

CyberSec Enthusiast! Helping organisations to achieve highly controlled & secured connectivity for widespread assets and ensuring end-users get seamless connectivity to carry out legitimate activities.
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I agree, but the only way to achieve this is via tight collaboration between security teams and application development team who both understand each others requirement, perspective and thought process. This will lead to a demanding Business Analyst who can actually bring these two different mindsets on the same page.

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3 Data encryption and storage

Another key aspect of mobile security architecture is data encryption and storage. Data encryption is the process of transforming data into an unreadable form, using cryptographic algorithms and keys. Data encryption helps you protect the confidentiality, integrity, and availability of your data from unauthorized access, modification, or deletion. Data storage is the process of choosing where and how to store your data, such as on the device, in the cloud, or in a hybrid model. Data storage helps you balance the performance, usability, and security of your data.

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Jaivrat Singh Rajoria

CyberSec Enthusiast! Helping organisations to achieve highly controlled & secured connectivity for widespread assets and ensuring end-users get seamless connectivity to carry out legitimate activities.
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I agree but, what about the future when Encryption algos will become breakable via Quantum? What is the answer to the above question, don’t have much knowledge on the topic but a lot of organisations are right now researching on this topic.

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4 Authentication and authorization

Authentication and authorization are essential components of mobile security architecture. Authentication is the process of verifying the identity of a user or a device, using methods such as passwords, biometrics, tokens, or certificates. Authorization is the process of granting or denying access to resources or functions, based on the user's or device's identity, role, or policy. Authentication and authorization help you ensure that only authorized users and devices can access your application and its features.

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5 Network and API security

Network and API security are crucial elements of mobile security architecture. Network security is the process of protecting the communication between your application and its backend services, using methods such as encryption, SSL/TLS, VPN, or firewall. API security is the process of protecting the interfaces that expose your backend services to your application, using methods such as encryption, authentication, authorization, rate limiting, or input validation. Network and API security help you prevent unauthorized or malicious access to your backend services and data.

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6 Monitoring and incident response

The last but not least aspect of mobile security architecture is monitoring and incident response. Monitoring is the process of collecting and analyzing data about the performance, behavior, and status of your application and its backend services, using methods such as logs, metrics, alerts, or audits. Incident response is the process of responding to and recovering from a security breach or incident, using methods such as detection, containment, eradication, recovery, or reporting. Monitoring and incident response help you identify and mitigate security issues and improve your security posture.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Sharat Lal

Digital Risk Manager - Al Futtaim, CISSP | CISM
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Enforce policies using a MDM (Mobile Device Management) solution. Enable features such as remote wipe to secure data against device theft. MFA to be considered to access any organization data. Restrict screen snips, data copy features.

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How can you design a secure architecture for mobile applications?

1

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3

4

5

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7

1 Threat modeling and risk assessment

2 Secure coding and testing

3 Data encryption and storage

4 Authentication and authorization

5 Network and API security

6 Monitoring and incident response

7 Here’s what else to consider

Information Security

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How can you design a secure architecture for mobile applications?

1

2

3

4

5

6

7

1 Threat modeling and risk assessment

2 Secure coding and testing

3 Data encryption and storage

4 Authentication and authorization

5 Network and API security

6 Monitoring and incident response

7 Here’s what else to consider

Information Security

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